背景介绍 SETMAR or SET domain and mariner transposase fusion gene is a nonhomologous end-joining repair protein that regulates genomic integration of exogenous DNA by opening chromatin and facilitating joining of DNA ends. SETMAR has histone methyltransferase activity and methylates 'Lys-4' and 'Lys-36' of histone H3. SETMAR also has DNA nicking activity and may play a role in DNA repair. Human Pso4 forms a stable complex with SETMAR that regulates Metnase function in DNA repair. SETMAR has sequence-specific DNA-binding activity and recognizes the 19-mer core of the 5'-terminal inverted repeats (TIRs) of the Hsmar1 element. 产品介绍 Human Metnase (SETMAR, or SET domain and mariner transposase fusion), GenBank Accession No. NM_006515, a.a. 27-684(end), with N-terminal FLAG-tag, MW=76 kDa, expressed in FreeStyle 293-F cells.